<template>
	<view>
		<view>
			<!-- 列表 -->
			<view class="cart-list">
				<block v-for="(item, index) in cartList" :key="item.id">
					<view class="cart-item" :class="{'b-b': index!==cartList.length-1}">
						<view class="image-wrapper">
							<image :src="item.images" :class="[item.loaded]" mode="aspectFill" lazy-load
								@load="onImageLoad('cartList', index)" @error="onImageError('cartList', index)"
								style="width: 119px;height: 119px"></image>
							<view class="yticon icon-xuanzhong2 checkbox" :class="{checked: item.checked}"
								@click="check('item', index)"></view>
						</view>
						<view class="item-right">
							<text class="clamp title">{{item.name}}</text>
							<text class="attr">{{item.attr_val}}</text>
							<text class="price">¥{{item.price}}</text>
                <uni-number-box class="step" :min="1" :max="999"
                                :value="item.total"
                                :index="index"
                                ></uni-number-box>
						</view>
						<text class="del-btn yticon icon-fork" v-for="(item,index) in cartList" v-if="index === 0" @click="deleteCartItem(item.id)"></text>
          </view>
				</block>
			</view>
			<view class="action-section">
				<view class="checkbox">
					<image :src="allChecked?'/static/selected.png':'/static/select.png'" mode="aspectFit"
						@click="check('all')"></image>
					<view class="clear-btn" :class="{show: allChecked}" @click="clearCart">
						清空
					</view>
				</view>
				<view class="total-box">
					<text class="price">¥{{cartNumber}}</text>
					<text class="coupon">
						已优惠
						<text>74.35</text>
						元
					</text>
				</view>
				<button type="primary" class="no-border confirm-btn" @click="createOrder">去结算</button>
			</view>
		</view>
	</view>
</template>

<script>

import {getCart, removeCart, removeProduct} from "../../api/cart/cart";
  import {getProduct} from "../../api/marketers/product";
	export default {
		data() {
			return {
        cartNumber: 0, //总价格
        //数量
        number:1,
				allChecked: false, //全选状态  true|false
				empty: false, //空白页现实  true|false
				cartList: [],
			};
		},
		onLoad(options) {
      console.info(options)
			this.loadData();
			this.check();
		},
		watch: {
			//显示空白页
			cartList(e) {
				let empty = e.length === 0 ? true : false;
				if (this.empty !== empty) {
					this.empty = empty;
				}
			}
		},

		methods: {
			//请求数据
			loadData() {
        getCart().then(response => {
          response.rows.forEach(data => {
            getProduct(data.productId).then(resp => {
              console.info("resp")
              console.info(resp)
              // if (data.productId === resp.data.id){
              //   data.cartNumber += 1
              // }
              resp.data.total = data.cartNumber
              console.info("data")
              this.cartList.push(resp.data)
              console.info(this.cartList)
            })
          })
				})
				var list = [];
				let cartList = list.map(item => {
					item.checked = true;
					return item;
				});
				this.cartList = cartList;
				this.calcTotal(); //计算总价
			},
			//监听image加载完成
			onImageLoad(key, index) {
				this.$set(this[key][index], 'loaded', 'loaded');
			},
			//监听image加载失败
			onImageError(key, index) {
				this[key][index].image = '/static/errorImage.jpg';
			},
			navToLogin() {
				uni.navigateTo({
					url: '/pages/public/login'
				})
			},
			//选中状态处理
			check(type, index) {
				console.log(type)
				if (type === 'item') {
					this.cartList[index].checked = !this.cartList[index].checked;
				} else {
					const checked = !this.allChecked
					const list = this.cartList;
					list.forEach(item => {
						item.checked = checked;
					})
					this.allChecked = checked;
				}
				this.calcTotal(type);
			},
			//删除
			deleteCartItem(productId) {
        console.info(productId)
        console.info(this.cartList)
        getCart().then(a => {
          console.info(a)
          a.rows.forEach(o => {
            console.info(o.productId)
            if (o.productId === productId){
              console.info(o.productId === productId)
              removeCart(productId).then(resp => {
                console.info("删除成功")
                this.loadData()
              })
            }
          })

        })

			},
			//清空
			clearCart() {

				uni.showModal({
					content: '清空购物车？',
					success: (e) => {
						if (e.confirm) {
							this.cartList = [];
						}
					}
				})
			},
			//计算总价
			calcTotal() {
				let list = this.cartList;
				if (list.length === 0) {
					this.empty = true;
					return;
				}
				let cartNumber = 0;
				let checked = true;
				list.forEach(item => {
          console.info(item)
					if (item.checked === true) {
            cartNumber += item.price * item.total;
					} else if (checked === true) {
						checked = false;
					}
				})
        console.info("cartNumber")
				this.allChecked = checked;
				this.cartNumber = Number(cartNumber.toFixed(2));
        console.info(this.cartNumber)
			},
			//创建订单
			createOrder() {
				let list = this.cartList;
				let goodsData = [];
				list.forEach(item => {
          console.info(111)
          console.info(item)
					if (item.checked) {
						goodsData.push({
              cartNumber: item.total,
							price: item.price,
							id: item.id,
						})
					}
				})
				// console.log("后:" + list)
				uni.navigateTo({
					url: `/pages/order/createOrder?data=${JSON.stringify({
							goodsData: goodsData
						})}`
				})
			}
		}
	}
</script>

<style lang='scss'>
	/* 购物车列表项 */
	.cart-item {
		display: flex;
		position: relative;
		padding: 30upx 40upx;
	
		.image-wrapper {
			width: 230upx;
			height: 230upx;
			flex-shrink: 0;
			position: relative;
	
			image {
				border-radius: 8upx;
			}
		}
	
		.checkbox {
			position: absolute;
			left: -16upx;
			top: -16upx;
			z-index: 8;
			font-size: 44upx;
			line-height: 1;
			padding: 4upx;
			color: $font-color-disabled;
			background: #fff;
			border-radius: 50px;
		}
	
		.item-right {
			display: flex;
			flex-direction: column;
			flex: 1;
			overflow: hidden;
			position: relative;
			padding-left: 30upx;
	
			.title,
			.price {
				font-size: $font-base + 2upx;
				color: $font-color-dark;
				height: 40upx;
				line-height: 40upx;
			}
	
			.attr {
				font-size: $font-sm + 2upx;
				color: $font-color-light;
				height: 50upx;
				line-height: 50upx;
			}
	
			.price {
				height: 50upx;
				line-height: 50upx;
			}
		}
	
		.del-btn {
			padding: 4upx 10upx;
			font-size: 34upx;
			height: 50upx;
			color: $font-color-light;
		}
	}
	
	/* 底部栏 */
	.action-section {
		/* #ifdef H5 */
		margin-bottom: 100upx;
		/* #endif */
		position: fixed;
		left: 30upx;
		bottom: 30upx;
		z-index: 95;
		display: flex;
		align-items: center;
		width: 690upx;
		height: 100upx;
		padding: 0 30upx;
		background: rgba(255, 255, 255, .9);
		box-shadow: 0 0 20upx 0 rgba(0, 0, 0, .5);
		border-radius: 16upx;
	
		.checkbox {
			height: 52upx;
			position: relative;
	
			image {
				width: 52upx;
				height: 100%;
				position: relative;
				z-index: 5;
			}
		}
	
		.clear-btn {
			position: absolute;
			left: 26upx;
			top: 0;
			z-index: 4;
			width: 0;
			height: 52upx;
			line-height: 52upx;
			padding-left: 38upx;
			font-size: $font-base;
			color: #fff;
			background: $font-color-disabled;
			border-radius: 0 50px 50px 0;
			opacity: 0;
			transition: .2s;
	
			&.show {
				opacity: 1;
				width: 120upx;
			}
		}
	
		.total-box {
			flex: 1;
			display: flex;
			flex-direction: column;
			text-align: right;
			padding-right: 40upx;
	
			.price {
				font-size: $font-lg;
				color: $font-color-dark;
			}
	
			.coupon {
				font-size: $font-sm;
				color: $font-color-light;
	
				text {
					color: $font-color-dark;
				}
			}
		}
	
		.confirm-btn {
			padding: 0 38upx;
			margin: 0;
			border-radius: 100px;
			height: 76upx;
			line-height: 76upx;
			font-size: $font-base + 2upx;
			background: $uni-color-primary;
			box-shadow: 1px 2px 5px rgba(217, 60, 93, 0.72)
		}
	}
	
	/* 复选框选中状态 */
	.action-section .checkbox.checked,
	.cart-item .checkbox.checked {
		color: $uni-color-primary;
	}
</style>